It is not quite a putdown, not quite a criticism, but Google's Eric Schmidt is raising the question of whether press baron Rupert Murdoch's plan for charging for content online is viable.
With so many freely available sources of content, it's more likely that the specialized content will be the candidate for a paywall, Schmidt told a conference in England.
"In general these models have not worked for general public consumption because there are enough free sources that the marginal value of paying is not justified based on the incremental value of quantity," he said.